AUTHOR=Wang Ziyue , Zhang Yi , Yuan Jiale , Wang Chao , He Bangjian , Pei Hang TITLE=Subchondral insufficiency fracture of the knee: progress in the pathogenesis and treatment JOURNAL=Frontiers in Surgery VOLUME=Volume 12 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/surgery/articles/10.3389/fsurg.2025.1640316 DOI=10.3389/fsurg.2025.1640316 ISSN=2296-875X ABSTRACT=Subchondral Insufficiency Fracture of the Knee (SIFK) is a disease with unclear pathogenesis and rapid progression, it is prone to developing end-stage osteoarthritis. Due to the lack of a definitive treatment strategy for SIFK in the clinic, knee replacement is often the preferred measure. However, in recent years, as the disease has become better understood, more and more effective treatments have been proposed, but there is a lack of summarization. Therefore, this article summarizes its pathogenesis and therapeutic advances.